Electric heating unit



' 1,628,868 May 17 1927' J. c. wooDsoN ELECTRIC'HEATING UNIT Filed A118. 20, 1924 /6/ .f6 BY ATTORNEY Patented May 17, 1927.

UNITEDv STATES PATENT OFFICE.

JAMES C. WQODSQN, 0F EAST PITTSBURGH, PENNSYLVANIA, ASSIGNOB T0 WESTING- HOUSE ELECTRIC MANUFACTURING COMPANY, A CORPORATION OF PENNSYLI VAN IA.

ELECTRIC HEATING NIT.

Application led August 20, 1924. Serial No. 733,054.

My invention relates to electric heating apparatus and particularly to means for supporting electric resistor units in electric heating apparatus.

The object of my invention is l-to provide an electric resistor supporting member that is strong in construction, durable inoperation and easily installed.

In-practicing my invention, I provide a metallic supporting member of substantially vchannel shape that may be secured in proper operative position relatively to the work to be heated. An yelectric resistor supporting member composed of any suitable refractory material is constructed in such a manner as to permit the. location thereof -in said channel member in such a mannerthat it is movable thereon longitudinally relatively thereto. The resistor supporting member comprises a base member of substantially rectan lar section having a plurality of aligneuupwardly extending straightportions integral therewith.

I have shown a plurality of opposed sets of such upwardly extendinf1r members and located therebetween a plurality of upwardly extending members having a straight portion and au overhanging portion. A helically wound resistor' member is located in operative position by threading between the straight upwardly extending members and the overhanging members, and is shitably secured to the base member. lhe base member is perforated adjacentto one'end thereof '"i to permit a bolt or other suitable means to be inserted therein to lock the resistor supporting member to the channel member. A plurality of resistor supporting members are located in the channel whichare Vin end-toend relation thereby permitting the resistor member to be continuously thiieaded in operi ative position lon itudinally thereof.

In the single s eet of drawinfs,

Figure 1 is a top plan View ofaa plurality of resistor supporting members located in o rative position in a supporting member olesubstantially ychannel form; 7

Fig. 2 is an end elevational view thereof;

Fig 3 is a bottom plan view of a resistor supporting member;

Fig. 4 is an end elevational viewthereof;

Fig. 5 is a top planview of a resistor supportingmember; and

inwardly extending portions 13 to substanl tially enclose a plurality of refractory resistor supporting members 14. 1

The resistory supporting member comprises a base member 15 having upwardly extending substantially straight members 16 that are integral therewith and are arranged in opposed sets in substantially aligned relation. `A plurality of upwardly extending members 17 are located between opposed sets of members 16 and comprise substantially straight portions 18 and overhanging portions 19. The base member 15 has a plurality of perforations 21 located/adjacent to one endthereof to provide a suitable means for securing the ends 22 of resistor member 23 in proper operative position. A

'plate 24 of any suitable electrically insulating material serves as itsterminal board for resistor (23.

A perforation 25 1s provided in base mem- 'ber 15 to'locate a bolt 26 utilized for locking the resistor supporting member 14 in operative position relatively to channel member In assembling the unit, the resistor member 23 is threaded vbetween the straight portions of the upwardly extending member and beneath the overhanging portions 19 thereby securely locating said resistor in operative position relatively to resistor supporting members: The ends 22 of the resistor member are secured to the-base member by means of bolts 27. Any desired number vof resistor supporting members 14 are placed in the channel supporting member 11 and moved longitudinally thereto into proper operative position and secured thereto by bolt 26. i

It is obvious that this structure provides a resistorsupporting member that is sim le to'construdt, durable iii-:operation and siniple in installation.

Various modifications and changes may be made without departing from the spirit and scope of the invention, and I desire therefore that only such limitations shall be placed thereon as are imposed by the prior art or are set forth in theappended claims.

I claim as my invention:

CII

ing an upwardly extending portion and anoverhangmg portion.

2. An electric resistor supporting member comprising a base member, a plurality of sets of aligned substantially straight members integral therewith and extending upwardly therefrom. and a member having an upwardly extending portion and an overhanging portion.

3. An electric resistor supporting member comprising a base member, a plurality of opposed sets of aligned substantially straight members integral therewith and extendln u`ward1y therefrom, and a plurality o \a igned members located between, said sets of straight members, having an upwardly extending portion and an overhanging portion.

in testimony whereof, I have hereunto sulgicribed my name this 14th day of August, 19

lJAMES C. wooDsoN. 

